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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Fgfr2tm3.1Lni
targeted mutation 3.1, Peter Lonai
MGI:2183529
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Fgfr2tm3.1Lni/Fgfr2tm3.1Lni involves: 129S1/Sv * 129X1/SvJ * BALB/c * C57BL/6 MGI:3844310
cn2
Fgfr1tm1Jpa/Fgfr1tm1Jpa
Fgfr2tm3.1Lni/Fgfr2tm3.1Lni
Tg(Pax3-cre)1Joe/0
involves: 129/Sv * BALB/c * C57BL/6 * FVB/N * SJL MGI:5438679
cx3
Fgfr2tm3.1Lni/Fgfr2+
Hmgcs2em1Wilh/Hmgcs2em1Wilh
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:6416132


Genotype
MGI:3844310
hm1
Allelic
Composition
Fgfr2tm3.1Lni/Fgfr2tm3.1Lni
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * BALB/c * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr2tm3.1Lni mutation (0 available); any Fgfr2 mutation (90 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• proliferation of osteoblasts is prematurely lost compared to in wild-type mice

skeleton
• proliferation of osteoblasts is prematurely lost compared to in wild-type mice
• at E16.5 and P1, cell proliferation at the coronal suture is decreased compared to in wild-type mice
• proliferation of osteoblasts is prematurely lost compared to in wild-type mice
• mice exhibit a down-curved nasomaxillary region unlike wild-type mice
• from E15.5 to P14, the bones in the skull base are reduced in size compared to in wild-type mice
• at P14, the ratio of bone lengths is 1:0.95 from the outer border of the exoccipital bone to the basioccipital-sphenoid suture, but 1:0.55 from this suture to the caudal border of the maxilla
• the distance between the otic capsule and the caudal border of the tooth row is reduced compared to in wild-type mice
• the sphenoid region of the skull base exhibit reduced growth compared to in wild-type mice
• at P14, the basisphenoid-presphenoid suture is abnormally positioned under the bony plate unlike in wild-type mice
• at P14, the basisphenoid-presphenoid suture is abnormally positioned under the bony plate unlike in wild-type mice
• at P14, mice exhibit premature fusion of the basioccipital and exoccipital bones and between the exoccipital and supraoccipital bones unlike in wild-type mice
• synostoses between cranial sutures at P14
• at P14, the coronal suture is partially or completely fused unlike in wild-type mice
• at E14.5, only mandible, clavicle, scapula, humerus, and proximal parts of the upper ribs are ossified
• at E14.5, the dermal and endochondral components of the skull vault and skull base exhibit delayed ossification compared to in wild-type mice
• at E14.5, there is no ossification of the hind limb or vertebrae unlike in wild-type mice
• at P14, the vertebral arches are not fused along the dorsal midline as in wild-type mice

craniofacial
• at E16.5 and P1, cell proliferation at the coronal suture is decreased compared to in wild-type mice
• proliferation of osteoblasts is prematurely lost compared to in wild-type mice
• mice exhibit a down-curved nasomaxillary region unlike wild-type mice
• from E15.5 to P14, the bones in the skull base are reduced in size compared to in wild-type mice
• at P14, the ratio of bone lengths is 1:0.95 from the outer border of the exoccipital bone to the basioccipital-sphenoid suture, but 1:0.55 from this suture to the caudal border of the maxilla
• the distance between the otic capsule and the caudal border of the tooth row is reduced compared to in wild-type mice
• the sphenoid region of the skull base exhibit reduced growth compared to in wild-type mice
• at P14, the basisphenoid-presphenoid suture is abnormally positioned under the bony plate unlike in wild-type mice
• at P14, the basisphenoid-presphenoid suture is abnormally positioned under the bony plate unlike in wild-type mice
• mice exhibit shortened and sometimes bent facial areas unlike wild-type mice

growth/size/body
• mice exhibit shortened and sometimes bent facial areas unlike wild-type mice
• mice exhibit dwarfism
• even before incisor eruption
• 40% to 50% less than in wild-type mice

vision/eye
• slight

renal/urinary system
N
• mice exhibit normal kidney development at E13.5 and E16.5; no differences in the long axis or surface area of the total kidney are noted at E18.5 relative to controls
• no ureteric induction defects or other congenital anomalies of the kidney and urinary tract are observed
• after 48 hrs culture, E12.5 kidney explants show normal ureteric branching and nephron development




Genotype
MGI:5438679
cn2
Allelic
Composition
Fgfr1tm1Jpa/Fgfr1tm1Jpa
Fgfr2tm3.1Lni/Fgfr2tm3.1Lni
Tg(Pax3-cre)1Joe/0
Genetic
Background
involves: 129/Sv * BALB/c * C57BL/6 * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr1tm1Jpa mutation (0 available); any Fgfr1 mutation (223 available)
Fgfr2tm3.1Lni mutation (0 available); any Fgfr2 mutation (90 available)
Tg(Pax3-cre)1Joe mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• at E10.5, mice exhibit a severe reduction in the size of condensed metanephric mesenchyme relative to controls, as shown by H&E staining
• still images of 3D reconstructions show a 70% reduction in metanephric mesenchyme volume at E10.5
• at E11.5, the metanephric mesenchyme remains small and less condensed, unlike in controls
• by E12.5, high levels of apoptosis are noted throughout the remnant metanephric mesenchyme, as revealed by TUNEL staining
• however, no obvious differences in mesenchymal proliferation or apoptosis are noted at E10.5 and E11.5 relative to controls
• no apparent kidney tissues are observed at E13.5 and E18.5
• at E11.5, ureteric buds remain unbranched, unlike in controls
• at E11.5, none of the ureteric buds elongate into the metanephric mesenchyme, unlike in controls
• a subset of mice develop an anteriorly displaced secondary ureteric bud, unlike in controls
• at E11.5, ureteric buds are small and unbranched, unlike in controls

cellular
• by E12.5, high levels of apoptosis are noted throughout the remnant metanephric mesenchyme, as revealed by TUNEL staining
• however, no obvious differences in mesenchymal proliferation or apoptosis are noted at E10.5 and E11.5 relative to controls

embryo
• by E12.5, high levels of apoptosis are noted throughout the remnant metanephric mesenchyme, as revealed by TUNEL staining
• however, no obvious differences in mesenchymal proliferation or apoptosis are noted at E10.5 and E11.5 relative to controls




Genotype
MGI:6416132
cx3
Allelic
Composition
Fgfr2tm3.1Lni/Fgfr2+
Hmgcs2em1Wilh/Hmgcs2em1Wilh
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr2tm3.1Lni mutation (0 available); any Fgfr2 mutation (90 available)
Hmgcs2em1Wilh mutation (0 available); any Hmgcs2 mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• testes development is similar to controls





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory